A man who only spoke Greek came to America for the first time. He realized that he needed to learn English, so he took a class. When questioned by his teacher, "How do you spell fish?" he replied "g-h-o-t-i". The teacher was very surprised as to how he could get such an answer since he was learning English so well. He asked the man, "How did you get that answer?" When the man replied, the teacher accepted his answer with a chuckle. What was his answer?